But if I change the turbo to US spec or change the composition of the wheels as Yogi said, I would have to retune my stock ecu which has been tuned for this specific turbo. The spool up characteristics will change also.

Its impossible to get a tune here. Only way is to get a tuner to fly over here.

 

The change in weight of wheels will not change the tune. They only give a slighly faster transient response. You will need both wheels. The turbine wheel will be bent and unusable. I have a US spec turbo for sale if you are in need.

 

lemon!

 

Chamama:
IIRC, there are tuning programs that allow you to hook your own computer up to the car, and upload ECU programming. With some work with one of our resident ECU gurus, I'm sure a suitable program could be developed over email.

Also, your turbo to me looks like it had a materials failure. I was under the impression that those parts were tested, but...if a small hairline crack developed, the g-forces present when the turbo is spooling would amplify it, and result in the one-sided damage that you saw. The reason I'm ruling out FOD (foreign object damage) is that the other side of the turbine blades look perfectly fine.

Finally, without seeing better the inside of the turbine housings, I can't say in good faith that I would reuse those parts. If they are seriously damaged, they might chip or fail under use (rare...but still), this would cause your turbo to go boom once again. I honestly would look to purchase a complete new turbo unit, whether it be an upgrade, or another stock unit.

Good luck!
-Ghent

 

damn an evo ix in bangladesh. u must own the road over there with that thing in stock form.

 

could anyone tell me from the picture, which of the parts do I need to change. Only the cartridge was damaged, but i don't want to take any risk.

 

Chamama...sorry about this issue...

i have a few questions for you...
- what octane fuel where you running?
- how is the weather in bangladish (cold/ hot)?
- and the whining noise you mentioned in your first post...did that ever occar before the turbo blew or just when it blew?

thank you. goodluck

 

...In case you are interested, I have my stock turbo for sale with the stock (ported) manifold. It has less than 1500 miles and is in excellent condition. I can sell it to you for $300.00. If interested, send me a PM.

 

They have been 4 or 5 Evo 9's running around, stock with Magnesium compressor wheel like yours breaking after hardly driving it off the showroom. Its not surprising but yes the compressor wheel breaks.... tough luck... The best bet would be to just get another Ti JDM turbo from the Evo 8MR or RS cars and you will be on the road again.

We have a tuner here who will be willing to fly over to tune your car, given your ecu of choice of course and will give you that much extra on your evo 9. With a full exhaust and intake and only a programmable ecu, made 361 WHP at 22 psi on 93 octane pump gas. Pm me if you need. We can arrange to send you a low mileage replacement turbo for cheap. Thats what we did exactly on the 9 here that blew the stock turbo. Replaced it with a used TME turbine.

 

--Very, very bad fuel here. maybe 90 RON not 90 octane.
--Hot! in summer up to 38 C. in winter around 20C
--Whining after the turbo blew. Just suddenly there was a slight thudding sound and the car dropped boost.

 

^^Wow! 90 RON is really pretty bad. If I recall, I think that maybe close to 87 octane here in the states. I'm not sure of the exact conversion, but 90 sounds really low. You need something more like 98 RON or better. Is it possible to find that? It may not have made a difference in your compressor wheel breaking (seeing as it's looking like a major problem regardless), but when you get the car back up and running, it would be much happier on a higher octane. If not, you may have to turn down the boost.

 

Actually, JDM evo's are tuned for 100 RON!! My timing is so retarded, that it peaks at 19 psi and holds at 15psi. Sad thing is, even if I am willing to pay more, I cannot get better fuel here. I have thought about installing a boost controller and setting the boost very low, and only turn it up when I want spirited driving. Also planning to install water/alky spray.

I wanted to install some mods which can create more power at a lower boost level at the current fuel quality. Anyone has any advice?

 

chamama: when you get your new turbo you should look into boosting the octane of your fuel. I know you said you can only buy crappy fuel, but you should be able to buy some type of octane boosting additive. There are a lot of articles online and in magazines on what to use. If you can you buy Toluene or Xylene in a paint store there you should be able to raise the octane significantly.

 

Man you are seriously in the same situation as me, and the same problems.

Have you considered using octane booster? You could take it with you to the fuel station and use it every time... not cheap, but perhaps better than such retarded timing.

 

Your're definitely right in wanting to do a water/alky system.